Removed "RestartServer" from python subcommands in tests.
Removed "RestartServer" from python subcommands in tests.

emacsmirror/ycmd,emacsmirror/ycmd,emacsmirror/ycmd,emacsmirror/ycmd,emacsmirror/ycmd,abingham/emacs-ycmd,abingham/emacs-ycmd,abingham/emacs-ycmd,emacsmirror/ycmd,abingham/emacs-ycmd,abingham/emacs-ycmd,abingham/emacs-ycmd